<template>
  <el-row type="flex" class="row-bg" justify="center">
    <el-col :xl="6" :lg="7">
     <h2>欢迎来到VueAdmin的管理系统</h2>
      <el-image :src="require('@/assets/wenxin.jpg')" style="height: 180px; width: 180px;"></el-image>

      <p>微信号 小独自归东</p>
      <p>扫描二维码，添加微信。</p>

    </el-col>

    <el-col :span="1">
      <el-divider direction="vertical"></el-divider>
    </el-col>

    <el-col :xl="6" :lg="7">
      <el-form :model="loginForm" :rules="rules" ref="loginForm" label-width="100px" class="demo-loginForm">
        <el-form-item label="用户名" prop="username" style="width:380px">
          <el-input v-model="loginForm.username"></el-input>
        </el-form-item>


        <el-form-item label="密码" prop="password" style="width:380px">
          <el-input v-model="loginForm.password" type="password"></el-input>
        </el-form-item>


        <el-form-item label="验证码" prop="code" style="width:380px">
          <el-input v-model="loginForm.code" style="width:172px; float: left"></el-input>
          <el-image :src="captchaImg" class="captchaImg" @click="getCaptcha"></el-image>
        </el-form-item>

        <el-form-item>
          <el-button type="primary" @click="submitForm('loginForm')">登录</el-button>
          <el-button @click="resetForm('loginForm')">重置</el-button>
        </el-form-item>
      </el-form>
    </el-col>
  </el-row>
</template>

<script>

import qs from 'qs'

export default {
  name: "Login",
  data() {
    return {
      loginForm: {
        username: '',
        password:'',
        code:'',
        token:''
      },
      rules: {
        /*
      required: true,必填
      trigger: 'blur'焦点
      失去trigger则会触发必填属性
      ref:注册实例,方便获取,从而更好的校验规则
      */
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' }
        ],
        code: [
          { required: true, message: '请输入验证码', trigger: 'blur' },
          { min: 4, max: 4, message: '长度4个字符', trigger: 'blur' }
        ],
      },
      captchaImg:null
    };
  },
  methods: {
    submitForm(formName) {
      this.$refs[formName].validate((valid) => {
        if (valid) {
          this.$axios.post('/login?'+ qs.stringify(this.loginForm)).then(res => {

            console.log(res)

            const jwt = res.headers['authorization']

            this.$store.commit('SET_TOKEN', jwt)
            this.$router.push("/index")
          })

        } else {
          console.log('error submit!!');
          return false;
        }
      });
    },
    resetForm(formName) {
      this.$refs[formName].resetFields();
    },
    getCaptcha(){
      this.$axios.get('/captcha').then(res =>{

        console.log('captcha')
        console.log(res)

        this.loginForm.token = res.data.data.token
        this.captchaImg = res.data.data.captchaImg
        this.loginForm.code = ''
      })
    }
  },
  created() {
    this.getCaptcha()
  }
}
</script>

<style scoped>

.el-row {
  background-color: #fafafa;
  height: 100vh;
  display: flex;
  align-items: center;
  text-align: center;
  justify-content: center;
}

.el-divider {
  height: 200px;
}

.captchaImg {
  float: left;
  margin-left: 8px;
  border-radius: 4px;
}

</style>